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How to create an HTML button that acts like a link?
...open the link in a new window/tab use: onclick="window.open('example.com','_blank');"
– bennos
Jun 16 '14 at 11:02
4
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Match multiline text using regular expression
...ole string but it can't as \\W matches a non word character, ie [^a-zA-Z0-9_] and the first character is T, a word character.
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How can I put a database under git (version control)?
...By duplicate, I mean create another database with a different name (like my_db_2); not doing a dump or anything like that.
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A JRE or JDK must be available in order to run Eclipse. No JVM was found after searching the followi
...ioned in "FAQ How do I run Eclipse?":
Eclipse DOES NOT consult the JAVA_HOME environment variable.
So I would check your $PATH, starting by n new shell sesion (whatever your OS is), typing 'java -version' to see if it still returns anything.
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How do I copy a version of a single file from one git branch to another?
...heckout otherbranch myfile.txt
General formulas:
git checkout <commit_hash> <relative_path_to_file_or_dir>
git checkout <remote_name>/<branch_name> <file_or_dir>
Some notes (from comments):
Using the commit hash you can pull files from any commit
This works for f...
Should I use an exception specifier in C++?
...t really know what it might do when something goes horribly wrong.
int lib_f();
void g() throw( k_too_small_exception )
{
int k = lib_f();
if( k < 0 ) throw k_too_small_exception();
}
g will terminate, when lib_f() throws. This is (in most cases) not what you really want. std::terminat...
How to check if the user can go back in browser history or not
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Does not work if a window was opened with target="_blank" to force a new window. The back button on the browser won't work, but there will be a document.referrer
– Mike_K
Mar 26 '13 at 15:54
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How to read a .xlsx file using the pandas Library in iPython?
...
I usually create a dictionary containing a DataFrame for every sheet:
xl_file = pd.ExcelFile(file_name)
dfs = {sheet_name: xl_file.parse(sheet_name)
for sheet_name in xl_file.sheet_names}
Update: In pandas version 0.21.0+ you will get this behavior more cleanly by passing sheet_na...
Why does PHP 5.2+ disallow abstract static class methods?
...This answer is vaguely wrong. "still not allowed" just means you'll get a E_STRICT level warning, at least in 5.3+ you're perfectly welcome to create abstract static functions, implement them in extended classes, and then refer to them via the static:: keyword. Obviously the parent class' static ver...
Best way to get child nodes
...odes to get NodeList, then make an array of all nodes with nodeType ELEMENT_NODE.
/**
* Return direct children elements.
*
* @param {HTMLElement}
* @return {Array}
*/
function elementChildren (element) {
var childNodes = element.childNodes,
children = [],
i = childNodes.len...